[______], the time scales of geological activity are important for environmental geologists because they provide a way to measure human impacts on the natural world.
동의어 · however, nonetheless, still파생어 · nonetheless()
★ 주제문 — S4·S5·S6이(가) 이 문장을 떠받칩니다 — S1을(를) 맥락(으)로 뒷받침